Drill Bushing #21. Bushings thread (1/2"-13 threads) into the cup or block and are interchangeable. Bushings are hardened steel to provide maximum wear and extended life.
AIRCRAFT / AVIATION TOOLS NEW NUMBERED THREADED DRILL BUSH ONLY #13
AIRCRAFT / AVIATION TOOLS NEW NUMBERED THREADED DRILL BUSH ONLY #20
AIRCRAFT / AVIATION TOOLS NEW NUMBERED THREADED DRILL BUSH ONLY #10
AIRCRAFT / AVIATION TOOLS NEW NUMBERED THREADED DRILL BUSH ONLY #30
AIRCRAFT / AVIATION TOOLS NEW NUMBERED THREADED DRILL BUSH ONLY #27
AIRCRAFT / AVIATION TOOLS NEW NUMBERED THREADED DRILL BUSH ONLY #40
